Sirichol's place itself is amazing. It has large rooms with everything needed inside. The pool is a must for having a relaxing time.
The location next to Bumrungrad Hospital is great. On the one hand the place is very quiet at the end of a small alley, which is quite appreciable for sensible sleepers like I am. On the other hand it's only 5min walk away from Soi 11 with hundreds of restaurants & bars. It's also 10min walk away from Nana's BTS station. Taxis & Tuktuks are easily available at the Hospital right next to the place. Nice clubs like The Club at Koi, Sing Sing Theatre, or the famous backpackers' Khaosan Road can be reached within 10min drive distance depending on the traffic.
I'd definitely go back to Sirichol's place next time I want to travel to Bangkok.